How do I check if a directory exists? “is_dir”, “file_exists” or both?

Question

I want to create a directory if it does\'nt exist already.

Is using is_dir enough for that purpose?

if ( !is_dir( $dir ) ) {
    mkdir(          


        

Answer 1

This is an old, but still topical question. Just test with the is_dir() or file_exists() function for the presence of the . or .. file in the directory under test. Each directory must contain these files:

is_dir("path_to_directory/.");    

Answer 2

A way to check if a path is directory can be following:

function isDirectory($path) {
    $all = @scandir($path);
    return $all !== false;
}

NOTE: It will return false for non-existant path too, but works perfectly for UNIX/Windows

Answer 3

$save_folder = "some/path/" . date('dmy');

if (!file_exists($save_folder)) {
   mkdir($save_folder, 0777);
}

Answer 4

Second variant in question post is not ok, because, if you already have file with the same name, but it is not a directory, !file_exists($dir) will return false, folder will not be created, so error "failed to open stream: No such file or directory" will be occured. In Windows there is a difference between 'file' and 'folder' types, so need to use file_exists() and is_dir() at the same time, for ex.:

if (file_exists('file')) {
    if (!is_dir('file')) { //if file is already present, but it's not a dir
        //do something with file - delete, rename, etc.
        unlink('file'); //for example
        mkdir('file', NEEDED_ACCESS_LEVEL);
    }
} else { //no file exists with this name
    mkdir('file', NEEDED_ACCESS_LEVEL);
}

Answer 5

$year = date("Y");   
$month = date("m");   
$filename = "../".$year;   
$filename2 = "../".$year."/".$month;

if(file_exists($filename)){
    if(file_exists($filename2)==false){
        mkdir($filename2,0777);
    }
}else{
    mkdir($filename,0777);
}

Answer 6

This is how I do

if(is_dir("./folder/test"))
{
  echo "Exist";
}else{
  echo "Not exist";
}